[OpenWrt-Devel] Commit 8dcc1087602e breaks FA526 (Gemini) compile

[Linus Walleij]

Hi Boris & friends,

commit 8dcc1087602e2dd606e4f6e81a06aee62cfd4f4c
"toolchain: ARM: Fix toolchain compilation for gcc 8.x"
regresses the Gemini (FA526-based).

I cannot quite see how. I noticed init crashed with the latest
OpenWrt codebase and bisected it down to this commit.

Before the commit include/target.mk has:

ifneq ($(findstring arm,$(ARCH)),)
 ....
 CPU_CFLAGS_fa526 = -mcpu=fa526
 ....
 ifeq ($(CONFIG_SOFT_FLOAT),)
    ....

After in toolchain/gcc/common.mk we have:

ifeq ($(CONFIG_arm),y)
CC_CONFIGURE+= \
       --with-cpu=$(word 1, $(subst +," ,$(CONFIG_CPU_TYPE)))
 ....
 ifneq ($(CONFIG_SOFT_FLOAT),y)
    GCC_CONFIGURE+= \
               --with-fpu=$(word 2, $(subst +, ",$(CONFIG_CPU_TYPE)))
               --with-float=hard

It's a bit terse so I cannot really make this out :/

Relevant stuff from my .config is:
CONFIG_CPU_TYPE="fa526"
CONFIG_arm=y
CONFIG_ARCH="arm"
CONFIG_SOFT_FLOAT=y

Any hints?

Yours,
Linus Walleij

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